Operators for spin angular momentum – David Miller

See https://web.stanford.edu/group/dabmgroup/cgi-bin/dabm/teaching/quantum-mechanics/ for links to all videos, slides, FAQs, and complete open online quantum classes. Lecture 34d of Quantum Mechanics for Scientists and Engineers Part of Lecture 34 Electron spin Text reference: Section 12.3, QMSE QMSE - D. A. B. Miller, Quantum Mechanics for Scientists and Engineers (Cambridge)